Lol hello, so this may be an unlikely place to find my answer, but since I am here, I will shoot anyways.

Im sick of $200 - $300 heated jackets.
So i told people I could build one for $50.

I have mostly everything in order except for one detail.

The heating element draws close to 4amps.

So the $4 battery holder i bought on amazon started melt after about 1 minute.

I clearly need a heavier duty battery holder.

I figured I would reach out and ask if anyone knows of a spring loaded 4 slot, series wires 18650 battery holder that can handle at least 45 watts.

Thanks a million